:root {
  --color-white: rgb(238, 223, 223);
  --color-dark-grey: rgb(21, 22, 24);
  --color-dark-blue: #00bfff;
}

html {
  font-size: 62.5%;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

*,
*::after,
*::before {
  margin: 0;
  padding: 0;
  box-sizing: inherit;
}

a {
  text-decoration: none;
}

body {
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

ul {
  list-style: none;
  font-size: 2rem;
}

.header {
  width: 100vw;
  min-height: 100vh;
  background-image: linear-gradient(to top, rgba(57, 57, 134, 0.5), transparent),
    url("../images/building2.jpg");
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
  color: var(--color-white);
  position: relative;
}

.logo__container {
  padding: 1.6rem 1rem;
  position: absolute;
  top: 1rem;
  left: 2rem;
  animation: slideFromLeft 1s linear;
  /* background-image: linear-gradient(to bottom, white, white); */
}
.img-logo {
  width: 30rem;
  height: auto;
}
/* Center the Arrow */

/* ============================ Header properties =====================  */
.header__container {
  display: flex;
  width: 80%;
  height: 90vh;
  margin: 0 auto;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

.header__title {
  font-size: 5rem;
  font-weight: 700;
  margin-top: 12rem;
  margin-bottom: 1rem;
  text-shadow: 0.6rem 0.4rem 0.2rem var(--color-dark-grey);
  animation: slideFromLeft 0.8s linear;
}

.header__subtitle {
  font-size: 4rem;
  font-weight: 700;
  margin-bottom: 1rem;
  text-shadow: 0.6rem 0.4rem 0.2rem var(--color-dark-grey);
  animation: slideFromRight 0.8s linear;
}

.header__contact {
  font-size: 3rem;
  width: 80%;
  margin: 2rem auto;
  animation: slideFromBottom 0.8s linear;
  text-shadow: 0.4rem 0.2rem 0.5rem var(--color-dark-grey);
  font-weight: 700;
  text-align: center;
}

.heading-tertiary {
  font-size: 2rem;
}

.highlight {
  color: var(--color-dark-blue);
  font-weight: 600;
  letter-spacing: 2;
}
/* ==================== Form style =============================== */

/* ==================== Main style ============================ */

.lct-container {
  margin-top: 8rem;
  display: flex;
}

.lct-container__box {
  margin-right: 5rem;
}

/* .footer {
  background-image: 

  color: var(--color-white);
} */

.footer__container {
  width: 80%;
  margin: 0 auto;
  padding: 5rem;
  text-align: center;
  font-size: 3rem;
}

@keyframes slideFromLeft {
  0% {
    transform: translateX(-50rem);
  }

  25% {
    transform: translateX(-25rem);
  }

  50% {
    transform: translateX(10rem);
  }

  100% {
    tranform: translateX(0);
  }
}

@keyframes slideFromRight {
  0% {
    transform: translateX(50rem);
  }

  25% {
    transform: translateX(-25rem);
  }

  50% {
    transform: translateX(10rem);
  }

  100% {
    tranform: translateX(0);
  }
}

@keyframes slideFromBottom {
  0% {
    transform: translateY(100rem);
    opacity: 0;
  }

  25% {
    transform: translateY(50rem);
    opacity: 0.3;
  }
  50% {
    transform: translateY(25rem);
    opacity: 0.7;
  }

  100% {
    transform: translateY(0rem);
    opacity: 1;
  }
}

@keyframes oscillate {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-2rem);
  }
}

@media (min-width: 600px) and (max-width: 990px) {
  .header__title {
    font-size: 4.5rem;
    margin-bottom: 2rem;
  }
  .header__subtitle {
    font-size: 3.5rem;
  }
  .header__contact {
    width: 100%;
    font-size: 1.8rem;
  }

  .highlight {
    font-size: 3rem;
  }

  .img-logo {
    width: 20rem;
  }
}

@media (min-width: 381px) and (max-width: 599px) {
  .header__title {
    font-size: 3.5rem;
    margin-bottom: 2rem;
    margin-top: 6rem;
  }
  .header__subtitle {
    font-size: 2.5rem;
  }

  .header__contact {
    font-size: 2rem;
  }
  .lct-container {
    flex-direction: column !important;
  }
  .lct-container__box {
    margin-bottom: 1.6rem;
  }
  .highlight {
    font-size: 2.5rem;
  }
  .img-logo {
    width: 18rem;
  }

  .footer__container {
    font-size: 2rem;
  }
}

@media (max-width: 380px) {
  .header__title {
    font-size: 3rem;
    margin-bottom: 2rem;
  }
  .header__subtitle {
    font-size: 2rem;
  }

  .lct-container {
    margin-top: 6rem;
    display: flex;
    flex-direction: column !important;
  }
  .header__title {
    font-size: 4.5rem;
    margin-bottom: 2rem;
  }
  .header__subtitle {
    font-size: 3.5rem;
  }
  .header__contact {
    width: 100%;
    font-size: 1.8rem;
  }
  .highlight {
    font-size: 2.5rem;
  }
  .img-logo {
    width: 16rem;
  }
}